Top management of Drexel-Hall is considering closing Store 3. The three stores are close enough together that management estimates closing Store 3 would cause sales at Store 1 to increase by $44,000, and sales at Store to increase by $103,000. Closing Store 3 is not expected to cause any change in common fixed costs. Compute the increase or decrease that closing Store 3 should cause in a. Total monthly sales for Drexel-Hall stores. b. The monthly responsibility margin of Stores 1 and 2 c. The company's monthly income from operations Top management of Drexel-Hall is considering closing Store 3. The three stores are close enough together that management estimates closing Store 3 would cause sales at Store 1 to increase by $44,000, and sales at Store to increase by $103,000. Closing Store 3 is not expected to cause any change in common fixed costs. Compute the increase or decrease that closing Store 3 should cause in a. Total monthly sales for Drexel-Hall stores. b. The monthly responsibility margin of Stores 1 and 2 c. The company's monthly income from operations